In this work, modification of carbon paste electrode surface with poly (2, 5-Dimethyl aniline) (P-2,5-DMA) by using electrochemical polymerization was described. Then, transition metal ions of Ni(II) were incorporated into the polymer film by two ways. At first way, the polymeric modified electrode was immersed in 0.2 M NiSO4 solutions and the second way was carried out by electrodeposition of ...

A new sensitive and selective electrochemical sensor was developed for determination of glutathione (GSH) at the surface of carbon paste electrode (CPE) modified with multi-wall carbon nanotubes (MWCNTs) as a sensor and pyrogallol red (PGR) as a mediator. The mechanism of GSH electrochemical behavior at the modified electrode surface was investigated by various electrochemical techniques includ...

The use of 0.6 vol.% single-walled carbon nanotubes in a poly(ethylene glycol)based dispersion gave a thermal paste that was as effective as solder for improving thermal contacts. A thermal contact conductance of 20 · 10 W m K was attained. An excessive amount of nanotubes (e.g. 1.8 vol.%) degraded the performance, because of conformability loss. The nanotubes were more effective than hexagonal...

Abstract In the production process of aluminum electrolytic carbon anode, kneading is to fully mix asphalt and powder obtain best paste, because completed in a high-temperature machine, there no suitable automatic real-time judgment method for uniformity paste. Real-time online monitoring based on viscoelastic change paste during potential judge this paper, Discrete Element Method numerical sim...

We present a rapid low-cost process for fabrication of screen-printed carbon thick-film strain sensors with 0.012% strain resolution. The sensors are suitable for implantation and designed specifically for strain or fullness measurements of the skin and bladder, respectively. Thick-film carbon paste sensors are screen-printed using an etched brass screen onto polydimethylsiloxane (PDMS) and enc...

In this work a new chemically modified carbon paste electrode was constructed for accurate, simple, sensitive and selective determination of molybdenum (VI) ions. The results of modified electrode by an ion imprinted polymer were compared with those obtained with carbon paste electrode. The results showed the stripping peak currents had a dramatic increase at the modified electrode. Under the o...

Abstract The utility of carbon paste electrode for the determination of flavoxate HCl modified with flavoxate-tetraphenylborate (FLX-TPB) and flavoxate-phosphotungestic acid (FLX-PTA) ion-pairs in batch mode is demonstrated. The electrodes revealed a Nernstian response over a wide concentration ranges 1.39×10-5-1x10-2 mol L-1 and1×10-5-1x10-2 mol L-1 using FLX-TPB and FLX-PTA, respectively. The...

In this communication we review selected experiments involving the use of carbon paste electrodes (CPEs) to monitor and measure brain tissue O2 levels in awake freely-moving animals. Simultaneous measurements of rCBF were performed using the H2 clearance technique. Voltammetric techniques used include both differential pulse (O2) and constant potential amperometry (rCBF). Mild hypoxia and hyper...

Resveratrol (3,3,4’-trans-trihydroxystilbene) is a polyphenolic phytoalexin that is produced by several plants as response to stress attack like UV exposure or fungus and bacteria infections [1]. It shows a variety of biological activities such as protection against atherosclerosis and against cardiovascular diseases and anticarcinogenic properties [2]. In recent years resveratrol has enjoyed a...

playing an important role in various areas, such as amino acid biosynthesis, bioprocess monitoring, the food industry, and in medicine. It is widely used as a flavor enhancer in various foodstuffs and seasonings (1), as well as being connected to the Chinese restaurant syndrome (2). It has been associated with several diseases; hence, it is used as a clinical marker for general and protein meta...